diff --git a/koboldcpp.py b/koboldcpp.py
index e1e8f579dd191..898e8e08b875e 100644
--- a/koboldcpp.py
+++ b/koboldcpp.py
@@ -1732,7 +1732,10 @@ def hide_tooltip(event):
     contextshift = ctk.IntVar(value=1)
     remotetunnel = ctk.IntVar(value=0)
     smartcontext = ctk.IntVar()
-    flashattention = ctk.IntVar(value=0)
+    if os.name == "nt":
+        flashattention = ctk.IntVar(value=1)
+    else:
+        flashattention = ctk.IntVar(value=0)
     context_var = ctk.IntVar()
     customrope_var = ctk.IntVar()
     customrope_scale = ctk.StringVar(value="1.0")